96 lines
6.9 KiB
Markdown
96 lines
6.9 KiB
Markdown
# CLOUD AWS ALB DataDog monitors
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## How to use this module
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```
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module "datadog-monitors-cloud-aws-alb" {
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source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//cloud/aws/alb?ref={revision}"
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environment = "${var.environment}"
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message = "${module.datadog-message-alerting.alerting-message}"
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}
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```
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## Purpose
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Creates DataDog monitors with the following checks:
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- ALB HTTP code 4xx
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- ALB HTTP code 5xx
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- ALB latency
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- ALB no healthy instances
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- ALB target HTTP code 4xx
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- ALB target HTTP code 5xx
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## Inputs
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| Name | Description | Type | Default | Required |
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|------|-------------|:----:|:-----:|:-----:|
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| alb_no_healthy_instances_enabled | Flag to enable ALB no healthy instances monitor | string | `true` | no |
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| alb_no_healthy_instances_extra_tags | Extra tags for ALB no healthy instances monitor | list | `<list>` | no |
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| alb_no_healthy_instances_message | Custom message for ALB no healthy instances monitor | string | `` | no |
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| alb_no_healthy_instances_silenced | Groups to mute for ALB no healthy instances monitor | map | `<map>` | no |
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| alb_no_healthy_instances_time_aggregator | Monitor aggregator for ALB no healthy instances [available values: min, max or avg] | string | `min` | no |
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| alb_no_healthy_instances_timeframe | Monitor timeframe for ALB no healthy instances [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| artificial_requests_count | Number of false requests used to mitigate false positive in case of low trafic | string | `5` | no |
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| environment | Architecture environment | string | - | yes |
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| evaluation_delay | Delay in seconds for the metric evaluation | string | `900` | no |
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| filter_tags_custom | Tags used for custom filtering when filter_tags_use_defaults is false | string | `*` | no |
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| filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
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| httpcode_alb_4xx_enabled | Flag to enable ALB httpcode 4xx monitor | string | `true` | no |
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| httpcode_alb_4xx_extra_tags | Extra tags for ALB httpcode 4xx monitor | list | `<list>` | no |
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| httpcode_alb_4xx_message | Custom message for ALB httpcode 4xx monitor | string | `` | no |
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| httpcode_alb_4xx_silenced | Groups to mute for ALB httpcode 4xx monitor | map | `<map>` | no |
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| httpcode_alb_4xx_threshold_critical | loadbalancer 4xx critical threshold in percentage | string | `80` | no |
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| httpcode_alb_4xx_threshold_warning | loadbalancer 4xx warning threshold in percentage | string | `60` | no |
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| httpcode_alb_4xx_timeframe | Monitor timeframe for ALB httpcode 4xx [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| httpcode_alb_5xx_enabled | Flag to enable ALB httpcode 5xx monitor | string | `true` | no |
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| httpcode_alb_5xx_extra_tags | Extra tags for ALB httpcode 5xx monitor | list | `<list>` | no |
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| httpcode_alb_5xx_message | Custom message for ALB httpcode 5xx monitor | string | `` | no |
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| httpcode_alb_5xx_silenced | Groups to mute for ALB httpcode 5xx monitor | map | `<map>` | no |
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| httpcode_alb_5xx_threshold_critical | loadbalancer 5xx critical threshold in percentage | string | `80` | no |
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| httpcode_alb_5xx_threshold_warning | loadbalancer 5xx warning threshold in percentage | string | `60` | no |
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| httpcode_alb_5xx_timeframe | Monitor timeframe for ALB httpcode 5xx [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| httpcode_target_4xx_enabled | Flag to enable ALB target httpcode 4xx monitor | string | `true` | no |
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| httpcode_target_4xx_extra_tags | Extra tags for ALB target httpcode 4xx monitor | list | `<list>` | no |
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| httpcode_target_4xx_message | Custom message for ALB target httpcode 4xx monitor | string | `` | no |
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| httpcode_target_4xx_silenced | Groups to mute for ALB target httpcode 4xx monitor | map | `<map>` | no |
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| httpcode_target_4xx_threshold_critical | target 4xx critical threshold in percentage | string | `80` | no |
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| httpcode_target_4xx_threshold_warning | target 4xx warning threshold in percentage | string | `60` | no |
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| httpcode_target_4xx_timeframe | Monitor timeframe for ALB target httpcode 4xx [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| httpcode_target_5xx_enabled | Flag to enable ALB target httpcode 5xx monitor | string | `true` | no |
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| httpcode_target_5xx_extra_tags | Extra tags for ALB target httpcode 5xx monitor | list | `<list>` | no |
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| httpcode_target_5xx_message | Custom message for ALB target httpcode 5xx monitor | string | `` | no |
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| httpcode_target_5xx_silenced | Groups to mute for ALB target httpcode 5xx monitor | map | `<map>` | no |
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| httpcode_target_5xx_threshold_critical | target 5xx critical threshold in percentage | string | `80` | no |
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| httpcode_target_5xx_threshold_warning | target 5xx warning threshold in percentage | string | `60` | no |
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| httpcode_target_5xx_timeframe | Monitor timeframe for ALB target httpcode 5xx [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| latency_enabled | Flag to enable ALB latency monitor | string | `true` | no |
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| latency_extra_tags | Extra tags for ALB latency monitor | list | `<list>` | no |
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| latency_message | Custom message for ALB latency monitor | string | `` | no |
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| latency_silenced | Groups to mute for ALB latency monitor | map | `<map>` | no |
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| latency_threshold_critical | latency critical threshold in milliseconds | string | `1000` | no |
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| latency_threshold_warning | latency warning threshold in milliseconds | string | `500` | no |
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| latency_time_aggregator | Monitor aggregator for ALB latency [available values: min, max or avg] | string | `min` | no |
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| latency_timeframe | Monitor timeframe for ALB latency [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| message | Message sent when a monitor is triggered | string | - | yes |
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| new_host_delay | Delay in seconds before monitor new resource | string | `300` | no |
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## Outputs
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| Name | Description |
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|------|-------------|
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| ALB_httpcode_4xx_id | id for monitor ALB_httpcode_4xx |
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| ALB_httpcode_5xx_id | id for monitor ALB_httpcode_5xx |
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| ALB_httpcode_target_4xx_id | id for monitor ALB_httpcode_target_4xx |
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| ALB_httpcode_target_5xx_id | id for monitor ALB_httpcode_target_5xx |
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| ALB_latency_id | id for monitor ALB_latency |
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| ALB_no_healthy_instances_id | id for monitor ALB_no_healthy_instances |
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## Related documentation
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DataDog blog: [https://www.datadoghq.com/blog/monitor-application-load-balancer/](https://www.datadoghq.com/blog/monitor-application-load-balancer/)
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AWS ALB metrics documentation: [https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-cloudwatch-metrics.html](https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-cloudwatch-metrics.html)
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